/Engine/Source/Developer/AutomationController/Public/IAutomationReport.h
Returns the name of this level in the test hierarchy for the purposes of grouping. (Editor.Maps.LoadAll.parameters) would have 3 internal tree nodes and a variable number of leaf nodes depending on how many maps existed
the name of this level in the hierarchy for use in UI.
const [FString](API\Runtime\Core\Containers\FString) & GetDisplayName() const